Finding the Fourth Proportional to 667,768.92, 1,000,985.14 and 331,055.96
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Solution
The fourth proportional to 667,768.92, 1,000,985.14 and 331,055.96 is: 496,252.65
Step by Step Solution
- Step 1: Write the proportion equation
667,768.92 : 1,000,985.14 = 331,055.96 : x - Step 2: Convert to fraction form
667,768.92/1,000,985.14 = 331,055.96/x - Step 3: Cross multiply
667,768.92x = 1,000,985.14 × 331,055.96 - Step 4: Simplify right side
667,768.92x = 331,382,096,468.43 - Step 5: Solve for x
x = 331,382,096,468.43/667,768.92 - Step 6: Final answer
x = 496,252.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.